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Computer Science

Dr. Sam Redfern

B.A., M.Sc., Ph.D.

 
researcher
 

Biography

I have been a software developer, specialising in computer games, since the early 1980s. Employed as a university lecturer since 1996, my teaching has focused mostly on software development/programming, games development, graphics and image processing. My research has been in various areas of applied computer science, including digital image processing, artificial intelligence, graphics, image processing, and virtual collaboration technologies. I have published numerous computer games on a variety of desktop platforms, tablets and smartphones.

Research Interests

Computer games technologies
Artificial Intelligence
Digital image processing
Collaborative Virtual Environments
Distibuted Work/Telework/eLearning
Computer Supported Co-Operative Work
Realtime 3D graphics/visualisation

Research Projects

  Project Start Date End Date
CHINESE LOCALISED HIBERNIA GAME EI INNOVATION VOUCHER IV 2012 1084 SAM REDFERN 01-APR-12 31-JAN-14
MF2002 MF87 02 M DR SAM REDFERN 14-OCT-02 29-NOV-04
EI ATRP 02 212 SAM REDFERN 01-NOV-02 31-MAY-06
EI IV 2009 3204 & IV 2009 3203 DR SAM REDFERN 01-MAR-10 28-FEB-11
MF2003 MF48 03 M SAM REDFERN 01-JAN-04 31-DEC-04
EI AND REAL SIM LIMITED FACEBOOK HIBERNIA GAME IV-2010-3289, IV 2010 0051T, IV 2010 0050T SAM REDFERN 01-FEB-11 14-SEP-11

Peer Reviewed Journals

  Year Publication
(2022) 'Introducing and Familiarising Older Adults Living with Dementia and Their Caregivers to Virtual Reality'
Flynn A, Barry M, Qi Koh W, Reilly G, Brennan A, Redfern S, Casey D. (2022) 'Introducing and Familiarising Older Adults Living with Dementia and Their Caregivers to Virtual Reality'. International Journal of Environmental Research and Public Health, 19 (23) [DOI] [Details]
(2022) 'Key Stakeholders¿ Experiences and Perceptions of Virtual Reality for Older Adults Living With Dementia: Systematic Review and Thematic Synthesis'
Flynn A, Healy D, Barry M, Brennan A, Redfern S, Houghton C, Casey D (2022) 'Key Stakeholders¿ Experiences and Perceptions of Virtual Reality for Older Adults Living With Dementia: Systematic Review and Thematic Synthesis'. Jmir Serious Games, 10 ((4)) [DOI] [Details]
(2020) 'A Robust Tracking-By-Detection Algorithm Using Adaptive Accumulated Frame Differencing and Corner Features'
Algethami, N. and Redfern, S. (2020) 'A Robust Tracking-By-Detection Algorithm Using Adaptive Accumulated Frame Differencing and Corner Features'. Journal of Imaging, 6 (4):1-31 [Details]
(1998) 'An Approach to Automated Morphological-Topographical Classification'
S. Redfern (1998) 'An Approach to Automated Morphological-Topographical Classification'. Aerial Archaeology Research, 17 :31-37 [Details]
(1999) 'A Neural Network-Based Model for Predicting the Bulk-Skin Temperature Difference at the Sea Surface'
B. Ward & S. Redfern (1999) 'A Neural Network-Based Model for Predicting the Bulk-Skin Temperature Difference at the Sea Surface'. International Journal Of Remote Sensing, 20 (18):3533-3548 [Details]
(1997) 'Computer Assisted Classification from Aerial Photographs'
S. Redfern (1997) 'Computer Assisted Classification from Aerial Photographs'. Aerial Archaeology Research, 14 :33-38 [Details]
(2013) 'Utilizing Bimodal Emotion Recognition for Adaptive Artificial Intelligence'
Alan Murphy and Sam Redfern (2013) 'Utilizing Bimodal Emotion Recognition for Adaptive Artificial Intelligence'. International Journal of Engineering Science and Innovative Technology (IJESIT), 2 (4):167-173 [Details]
(2012) 'Future Directions of the Conferencing and Collaboration Field'
Alfie Keary and Sam Redfern (2012) 'Future Directions of the Conferencing and Collaboration Field'. International Journal Of E-Collaboration; Special Issue On Collaborative Work Environments, 8 (2):46-69 [Details]
(2004) 'Adaptive Screen Generation for Mobile Devices'
O'Nuallain, Caoimhin and Redfern, Sam. (2004) 'Adaptive Screen Generation for Mobile Devices'. Itb Journal, :75-84 [Details]
(2002) 'Collaborative Virtual Environments to Support Communication and Community in Internet-Based Distance Education'
Redfern, S., and Naughton, N. (2002) 'Collaborative Virtual Environments to Support Communication and Community in Internet-Based Distance Education'. International Journal of Information Technology Education, 1 (3):201-211 [ARAN Link] [Details]
(1999) 'Digital elevation modelling of individual monuments from aerial photographs'
Redfern, S.; Lyons, G.; Redfern, RM; (1999) 'Digital elevation modelling of individual monuments from aerial photographs'. Archaeological Prospection, 6 :211-224 [ARAN Link] [Details]
(1998) 'A Framework for Digital Wide-Area Survey from Aerial Photographs'
S. Redfern (1998) 'A Framework for Digital Wide-Area Survey from Aerial Photographs'. Journal Of Irish Archaeology, 9 :135-150 [ARAN Link] [Details]

Book Chapters

  Year Publication
(2022) 'Multiplayer Game-Based Language Learning'
Redfern, S., & McCurry, R. (2022) 'Multiplayer Game-Based Language Learning' In: Handbook of Research on Promoting Economic and Social Development Through Serious Games. USA: IGI Global. [Details]
(2014) 'Current Trends and Developments, Future Requirements, and Predictions for Computer Mediated Communications and E-Collaboration'
Keary, A., S. Redfern and P. Walsh (2014) 'Current Trends and Developments, Future Requirements, and Predictions for Computer Mediated Communications and E-Collaboration' In: Knowledge Discovery, Transfer and Management in the Information Age. :212-244 PA, USA: IGI Global. [Details]
(2006) 'Distributed Virtual Reality Learning Environments'
S. Redfern, M. Colhoun, J. Hernandez, N. Naughton, D. Noonan, 2006. (2006) 'Distributed Virtual Reality Learning Environments' In: Teaching in the Knowledge Society: New Skills and Instruments for Teachers. :241-255 IGI Global. [Details]
(2012) 'Artificial Intelligence Supported Non-Verbal Communication for Enriched Collaboration in Distributed E-Research Environments'
Paul Smith and Sam Redfern (2012) 'Artificial Intelligence Supported Non-Verbal Communication for Enriched Collaboration in Distributed E-Research Environments' In: Collaborative and Distributed E-Research: Innovations in Technologies, Strategies and Applications. :135-164 USA: IGI Global. [Details]

Conference Publications

  Year Publication
(2021) 2021 IEEE 11th International Conference on Consumer Electronics (ICCE-Berlin)
Campbell, M., Redfern, S., McEvoy, J. W., & Concannon, F. (2021) Observing the Patient Experience: Inside the Doctor¿s Office in a Pandemic 2021 IEEE 11th International Conference on Consumer Electronics (ICCE-Berlin) , pp.1-6 [Details]
(2022) International Dementia Conference, Dublin, Ireland, November 15
Flynn, A., Reilly, G., Barry, M., Brennan, A., Redfern, S., Casey, D. (2022) Keeping older adults living with dementia socially connected: How can VR help? International Dementia Conference, Dublin, Ireland, November 15 [Details]
(2021) Alzheimer Europe Conference 2021. Online, November 21-December 1
Flynn, A., Healy, D., Reilly, Houghton, C., Barry, M., Brennan, A., Redfern, S., Casey, D. (2021) Virtual reality for older adults living with dementia: A multi-stakeholder perspective Alzheimer Europe Conference 2021. Online, November 21-December 1 [Details]
(2020) PSYCHOBIT 2020 : Second Symposium on Psychology-Based Technologies
Cannata, D., Redfern, S., O'Hora, D. (2020) OpenFaceR: Developing an R Package for the convenient analysis of OpenFace facial information PSYCHOBIT 2020 : Second Symposium on Psychology-Based Technologies Naples, Italy, , 27-SEP-20 - 29-SEP-20 [Details]
(2019) 15th IEEE International Conference on Signal Image Technology & Internet Based Systems (SITIS)
Algethami, N and Redfern, S (2019) An Adaptive Background Modelling Method Based on Modified Running Averages 15th IEEE International Conference on Signal Image Technology & Internet Based Systems (SITIS) , pp.40-49 [Details]
(2005) EdTech05
O'Nuallain, C. and Redfern, S (2005) Effective Technologies Selection in a Ubiquitous Collaborative Environment EdTech05 , pp.65-70 [Details]
(2011) GAME-ON 2011: 12TH INTERNATIONAL CONFERENCE ON INTELLIGENT GAMES AND SIMULATION
Murphy, A;Redfern, S (2011) Non Verbal Communication Assisted Serious Gaming Applications GAME-ON 2011: 12TH INTERNATIONAL CONFERENCE ON INTELLIGENT GAMES AND SIMULATION , pp.63-66 [Details]
(2011) GAME-ON 2011: 12TH INTERNATIONAL CONFERENCE ON INTELLIGENT GAMES AND SIMULATION
Smith, P;Redfern, S (2011) Experimental Assessment of an Emotion Tracking Software Agent (ETA) for assisting Communicative Interactions of Multitasking Users in Groupware GAME-ON 2011: 12TH INTERNATIONAL CONFERENCE ON INTELLIGENT GAMES AND SIMULATION , pp.67-72 [Details]
(2016) 2016 INTERNATIONAL CONFERENCE ON IMAGE, VISION AND COMPUTING (ICIVC 2016)
Broderick, J;Duggan, J;Redfern, S (2016) Using Game Engines for Marine Visualisation and Collaboration 2016 INTERNATIONAL CONFERENCE ON IMAGE, VISION AND COMPUTING (ICIVC 2016) , pp.96-101 [Details]
(2018) 2018 IEEE GAMES, ENTERTAINMENT, MEDIA CONFERENCE (GEM)
O'Hora, D;Redfern, S;Duran, N;Zgonnikov, A;Sweeney, D (2018) In-game motion dynamics provide a means of exploring the cognitive dynamics of deception 2018 IEEE GAMES, ENTERTAINMENT, MEDIA CONFERENCE (GEM) , pp.463-470 [Details]
(2018) 2018 IEEE GAMES, ENTERTAINMENT, MEDIA CONFERENCE (GEM)
Broderick, J;Duggan, J;Redfern, S (2018) The Importance of Spatial Audio in Modern Games and Virtual Environments 2018 IEEE GAMES, ENTERTAINMENT, MEDIA CONFERENCE (GEM) , pp.507-510 [Details]
(2018) Computer Graphics & Visual Computing
Algethami, N and Redfern, S. (2018) Combining accumulated frame differencing and corner detection for motion detection Computer Graphics & Visual Computing , pp.7-14 [Details]
(2005) International Conference on Auditory Display (ICAD)
Hernandez, J., Redfern, S. (2005) Dynamic Auditory Hierarchies for Collaborative Virtual Environment (CVE) Awareness, Navigation and Interaction International Conference on Auditory Display (ICAD) , pp.175-182 [Details]
(2014) International Conference on Game and Entertainment Technologies
Murphy, A,Redfern, S (2014) Improved Bimodal Emotion Recognition as a Tool in the Treatment of Impulse Control Disorders through Gameplay International Conference on Game and Entertainment Technologies , pp.58-65 [Details]
(2014) iHCI
Butler, V. and Redfern, S. (2014) Considering Place and Problem Solving in the Virtual World iHCI , pp.14-17 [Details]
(2017) International Conference on Auditory Display (ICAD)
Broderick, James, Jim Duggan, and Sam Redfern. (2017) Using Auditory Display Techniques to Enhance Decision Making And Perceive Changing Environmental Data Within a 3D Virtual Game Environment International Conference on Auditory Display (ICAD) , pp.147-151 [Details]
(2017) Herrenhausen Conference Society through the Lens of the Digital
Butler, V. and Redfern, S. (2017) Problem Solving through the lens of the digital Herrenhausen Conference Society through the Lens of the Digital [Details]
(2017) IMVIP
Algethami, A and Redfern, S. (2017) Detecting and Tracking Meeting Participants using Motion Heat Maps IMVIP , pp.99-106 [Details]
(2018) IEEE Games, Entertainment and Media
Broderick, J, Redfern, S. and Duggan, J. (2018) The Importance of Spatial Audio in Modern Games and Virtual Environments IEEE Games, Entertainment and Media , pp.507-510 [Details]
(2018) IEEE Games, Entertainment and Media
Redfern, S. and McCurry, R. (2018) A Gamified System for Learning Mandarin Chinese as a Second Language IEEE Games, Entertainment and Media , pp.411-415 [Details]
(2011) GAME-ON2011 International Conference on Intelligent Games and Simulation
Murphy, A. and Redfern, S. (2011) Non-Verbal Communication Assisted Serious Gaming Applications GAME-ON2011 International Conference on Intelligent Games and Simulation , pp.63-66 [Details]
(2011) GAME'ON International Conference on Intelligent Games and Simulation
Smith, P. and Redfern, S. (2011) Experimental Assessment of an Emotion Tracking Software Agent (ETA) for Assisting Communicative Interactions of Multitasking Users in Groupware GAME'ON International Conference on Intelligent Games and Simulation , pp.67-72 [ARAN Link] [Details]
(2011) GAME'ON International Conference on Intelligent Games and Simulation
Redfern, Sam (2011) Player-Traced Empirical Cost-Surfaces for A* Pathfinding GAME'ON International Conference on Intelligent Games and Simulation , pp.22-27 [ARAN Link] [Details]
(2010) AICS
Sam Redfern (2010) Evolving Racetrack Knowledge in a Racing Game AICS , pp.220-229 [ARAN Link] [Details]
(2010) IEEE VS-GAMES
Paul Smith and Sam Redfern (2010) Facial Expression Tracking For Remote Conferencing Applications. An Approach to Tackling the Disadvantages of Remote Worker Multitasking IEEE VS-GAMES , pp.91-93 [Details]
(2010) AICS
Paul Smith and Sam Redfern (2010) Emotion Tracking for Remote Conferencing Applications using Neural Networks AICS , pp.240-249 [ARAN Link] [Details]
(2007) EdTech
Paul Gormley and Sam Redfern. (2007) The WCC Heuristic Evaluation Set – A Methodology for Evaluating the Usability of Web Communication and Collaboration (WCC) Groupware in Teaching and Learning EdTech , pp.82-88 [ARAN Link] [Details]
(2006) Design History Society Conference 2006
Butler, V., Redfern, S., (2006) Design: A Social Process of Collaboration and Knowledge Sharing Design History Society Conference 2006 Delft University of Technology, Netherlands, , pp.22-28 [Details]
(2005) International Conference on Enactive Interfaces
Butler, V., Redfern, S., (2005) Fostering the Social Dimension of Design International Conference on Enactive Interfaces Genoa, Italy, , 17-NOV-05 - 18-NOV-05 , pp.34-41 [Details]
(2005) Human Computer Interaction International Conference
Hernandez, J. and Redfern, S. 2005. (2005) Dynamic Auditory Hierarchies for Collaborative Virtual Environment (CVE) Awareness – Navigation and Interaction Human Computer Interaction International Conference , pp.170-178 [Details]
(2003) International Conference on Multimedia and ICTs in Education
Hernandez, J, Noonan, D, Redfern, S, Colhoun, M, Naughton, N, and Collins, D. 2003. (2003) Collaborative Virtual Environments and the Virtual Campus International Conference on Multimedia and ICTs in Education , pp.56-60 [Details]
(2002) Informing Science & IT Education
Redfern, S and Naughton, N. Informing Science & IT Education 2002 Joint International Conference. (2002) Collaborative Virtual Environments to Support Communication and Community in Internet-Based Distance Education Informing Science & IT Education , pp.91-101 [Details]
(1999) Computer Applications in Archaeology
S. Redfern. (1999) Digital Wide-Area Survey from Aerial Photographs Computer Applications in Archaeology , pp.119-126 [Details]
(1998) OESI/IMVIP Joint Conference
S. Redfern, G. Lyons, and R.M. Redfern (1998) The Automatic Morphological Description and Classification of Archaeological Monuments from Vertical Aerial Photographs OESI/IMVIP Joint Conference , pp.132-139 [ARAN Link] [Details]
(1997) Computer Applications in Archaeology
S. Redfern (1997) A PC-Based System for Computer Assisted Archaeological Interpretation of Aerial Photographs Computer Applications in Archaeology , pp.162-164 [Details]

Other Journals

  Year Publication
(2012) 'Creating Smart Enemies with Genetic Algorithms'
Redfern, S (2012) 'Creating Smart Enemies with Genetic Algorithms' Game Coder, 3 (3) :8-13. [Details]

Conference Contributions

  Year Publication
(2022) Alzheimer Europe Conference 2022,
Flynn, A., Reilly, G., Barry, M., Brennan, A., Redfern, S., Casey, D. (2022) Staying socially connected through the design of a bespoke virtual environment for older adults living with dementia. [Poster Presentation], Alzheimer Europe Conference 2022, Bucharest, Romania, , 17-OCT-22 - 19-OCT-22. [Details]
(2021) Alzheimer Europe Conference 2021,
Flynn, A., Healy, D., Reilly, G., Casey, D., Brennan, A., Redfern, S., Walsh, J., Conlon, O., Barry, M. (2021) (2021) Designing a Virtual Reality Familiarisation Environment for Older Adults Living with Dementia. [Poster Presentation], Alzheimer Europe Conference 2021, Online , 21-NOV-21 - 01-DEC-21. [Details]
(2022) Alzheimer's Association International Conference 2022,
Flynn, A., Reilly, Houghton, C., Barry, M., Brennan, A., Redfern, S., Casey, D. (2022) (2022) Co-Designing a VR Social Connecting Space for Older Adults Living with Dementia. [Poster Presentation], Alzheimer's Association International Conference 2022, San Diego, United States, , 21-JUL-22 - 04-AUG-22. [Details]
(2013) Independent Games Developers workshop,
Redfern, S. (2013) Efficient Asynchronous Gameservers using Node.js. [Keynote Address], Independent Games Developers workshop, London , 01-JAN-13. [Details]
(2019) Games Research Workshop at the State of Play Conference,
Redfern, S. (2019) Creative uses of non-linear node costs with the A* pathfinding algorithm. [Oral Presentation], Games Research Workshop at the State of Play Conference, Dublin , 01-JAN-19. [Details]
(2019) 2nd International Symposium of the European Association of Chinese Teaching,
McCurry R and Redfern S (2019) Teaching Chinese as a Second Language with Multi-User Multimedia and Gamification. [Invited Oral Presentation], 2nd International Symposium of the European Association of Chinese Teaching, Dublin , 01-JAN-19. [Details]
(2019) Irish Conference on Game Based Learning 2019,
Redfern, S. and McCurry, R (2019) Learning Chinese with Classroom-based Multiplayer Minigames. [Oral Presentation], Irish Conference on Game Based Learning 2019, Ireland , 01-JAN-19. [Details]
(2019) iHCI,
Redfern S, McCurry R (2019) Newbychinese multiplayer demonstration. [Other], iHCI, Ireland , 01-JAN-19. [Details]

Computer Program

  Year Publication
(2018) Newby Chinese.
Redfern, S., & McCurry, R. (2018) Newby Chinese. Computer Program [Details]
(2012) Let's Break Stuff!.
Redfern, S. (2012) Let's Break Stuff!. Computer Program [Details]
(2013) Musclecar Online.
Redfern, S. (2013) Musclecar Online. Computer Program [Details]
(2016) Goblins & Grottos.
Redfern, S., Robertsson, B., Robertssson, J., Munt, I. (2016) Goblins & Grottos. Computer Program [Details]
(2019) Fool Me Once.
Redfern, S., O'Hora, D. (2019) Fool Me Once. Computer Program [Details]
(2018) Lie2Me.
Redfern, S., O'Hora, D. (2018) Lie2Me. Computer Program [Details]
(2017) Orbs.it.
Redfern, S. (2017) Orbs.it. Computer Program [Details]
(2011) Mars Defender.
Redfern, S. (2011) Mars Defender. Computer Program [Details]
(2019) Demon Pit.
Redfern, S., Conway, P (2019) Demon Pit. Computer Program [Details]
(2012) Afterburn 2150.
Redfern, S. (2012) Afterburn 2150. Computer Program [Details]
(2010) Block Rockin'.
Redfern, S. (2010) Block Rockin'. Computer Program [Details]
(2007) Darkwind: War on Wheels.
Redfern, S. (2007) Darkwind: War on Wheels. Computer Program [Details]
(1995) Critical Hit.
Redfern, S. (1995) Critical Hit. Computer Program [Details]
(2020) OpenFaceR: Methods for using OpenFace in R.
Cannata, D., Redfern, S., O'Hora, D. (2020) OpenFaceR: Methods for using OpenFace in R. Computer Program [DOI] [Details]

Invited papers

  Year Publication
(2004) Virtual Reality Teleworking Communities.
Redfern, S. and Colhoun, M. 2004. IBM (Dublin) Invited Paper. (2004) Virtual Reality Teleworking Communities. Invited papers [Details]
(2003) Collaborative Virtual Environments and Distance Education.
Redfern, S. and Naughton, N. 2003. Microsoft Research (Cambridge) Invited Paper. (2003) Collaborative Virtual Environments and Distance Education. Invited papers [Details]

Magazine Article

  Year Publication
(2012) Creating Smart Enemies with Genetic Algorithms.
Redfern, Sam (2012) Creating Smart Enemies with Genetic Algorithms. Poland: Game Coder Magazine Magazine Article [Details]
(2007) Psychic Software and Darkwind: War on Wheels.
Redfern, S. 2007. New Age Gamer Magazine 10(6), 32-35. (2007) Psychic Software and Darkwind: War on Wheels. Magazine Article [Details]
(1984) Space Trader game program listing.
S. Redfern. (1984) Space Trader game program listing. Personal Computer World magazine, 1984 Magazine Article [Details]

Technical Publication

  Year Publication
(1998) The Application of Neural Networks to Environmental Modelling: the Estimation of Sea Surface Temperature Differences.
S. Redfern and B. Ward. 1998. IT Centre Research Journal, NUI Galway. (1998) The Application of Neural Networks to Environmental Modelling: the Estimation of Sea Surface Temperature Differences. Technical Publication [Details]
(1998) The Application of Digital Techniques to the Detection and Extraction of Archaeological Earthwork Monuments from Aerial Photographs.
S. Redfern and G. Lyons. 1998. IT Centre Research Journal, NUI Galway. (1998) The Application of Digital Techniques to the Detection and Extraction of Archaeological Earthwork Monuments from Aerial Photographs. Technical Publication [Details]